What this class covers:

This class covers chemicals used in industries, laboratories, and agriculture. It includes raw materials for manufacturing products like plastics, adhesives, and detergents. You won't find finished consumer products here—just the ingredients used to make them. Items like fertilizers, fire-extinguishing compositions, and industrial gases belong in this category.

What this class covers:

This class covers raw and semi-finished metal products, including building materials like steel beams, nails, and pipes. It also includes common metal goods like safes, locks, and metal containers. Items must be primarily made of metal to fit in this category. Finished goods, such as furniture or jewelry, fall under other classes.

What this class covers:

This class covers electronic devices, scientific instruments, and software. It includes everything from computers, smartphones, and cameras to medical diagnostic tools. It also covers downloadable software and AI programs. However, medical devices may also be classified under Class 10.

What this class covers:

This class includes fine jewelry, watches, and precious metals. It covers engagement rings, luxury timepieces, and gemstones. It also includes commemorative coins and trophies made of precious metals. Costume jewelry, however, may be categorized differently.